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Marquise|Natural|GIA

1.20ct F SI1 Marquise Natural Diamond

GD • F/SI1 • GIA 7551551592

Certificate GIA 7551551592

Diamond specifications and retailer prices

From £3,420 GBP
As of November 3, 2026
Save £4,246 GBP (55%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: £7,666 GBP at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7551551592. Listed at 30 retailers as of November 3, 2026, with prices from £3,420 to £7,666, a £4,246 spread on the same certified stone. NZ Jewellers lists it at £7,666. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7551551592
Dimensions10.46 × 5.51 × 3.47 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Cavity, Needle
Top View
10.46 mm5.51 mm1.20 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7551551592
Side View
Table 57.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.9%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: £7,666 GBP|Low: £3,098 GBP|High: £7,666 GBP|Avg: £4,476 GBP|+7.1%
NZ Jewellers
Retailer 2
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Retailer 24
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Retailer 26
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Retailer 29
Retailer 30
November 5, 2026
Retailer 15£3,098 GBP
Retailer 8£3,275 GBP
Retailer 28£3,420 GBP
Retailer 20£3,668 GBP
Retailer 11£3,687 GBP
Retailer 2£3,775 GBP
Retailer 4£3,810 GBP
Retailer 19£3,854 GBP
Retailer 6£3,902 GBP
Retailer 10£4,094 GBP
Retailer 30£4,115 GBP
Retailer 9£4,175 GBP
Retailer 18£4,175 GBP
Retailer 27£4,267 GBP
Retailer 22£4,279 GBP
Retailer 23£4,286 GBP
Retailer 12£4,289 GBP
Retailer 17£4,385 GBP
Retailer 13£4,396 GBP
Retailer 5£4,572 GBP
Retailer 3£4,684 GBP
Retailer 29£4,684 GBP
Retailer 25£4,764 GBP
Retailer 21£4,817 GBP
Retailer 7£4,841 GBP
Retailer 16£5,067 GBP
Retailer 14£6,015 GBP
Retailer 26£6,706 GBP
Retailer 24£6,734 GBP
NZ Jewellers£7,666 GBP

24 data points across 30 retailers

30 retailers£3,420 GBP to £7,666 GBP

Retailer 1
-
£3,098 GBP
Price last confirmed 18 days ago
Retailer 2
-
£3,275 GBP
View
Price last confirmed 18 days ago
B
Retailer 3
-
£3,420 GBP
View
Retailer 4
-
£3,676 GBP
View
Price last confirmed 37 days ago
Retailer 5
-
£3,687 GBP
View
Price last confirmed 20 days ago
B
Retailer 6
-
£3,775 GBP
View
B
Retailer 7
-
£3,810 GBP
View
B
Retailer 8
-
£3,902 GBP
View
B
Retailer 9
-
£3,904 GBP
View
Retailer 10
-
£4,080 GBP
View
Price last confirmed 24 days ago
B
Retailer 11
-
£4,115 GBP
View
Retailer 12
-
£4,175 GBP
View
Price last confirmed 18 days ago
Retailer 13
-
£4,175 GBP
View
Price last confirmed 22 days ago
B
Retailer 14
-
£4,267 GBP
View
Retailer 15
-
£4,279 GBP
View
Price last confirmed 26 days ago
Retailer 16
-
£4,286 GBP
View
Price last confirmed 29 days ago
Retailer 17
-
£4,289 GBP
View
Price last confirmed 19 days ago
Retailer 18
-
£4,385 GBP
View
Price last confirmed 18 days ago
B
Retailer 19
-
£4,396 GBP
View
B
Retailer 20
-
£4,572 GBP
View
B
Retailer 21
-
£4,684 GBP
View
B
Retailer 22
-
£4,684 GBP
View
B
Retailer 23
-
£4,764 GBP
View
Retailer 24
-
£4,817 GBP
View
Price last confirmed 19 days ago
B
Retailer 25
-
£4,841 GBP
View
Retailer 26
-
£5,067 GBP
View
Price last confirmed 21 days ago
Retailer 27
-
£6,015 GBP
View
Price last confirmed 19 days ago
C
Retailer 28
-
£6,706 GBP
View
B
Retailer 29
-
£6,734 GBP
View
Most Expensive
C
NZ Jewellers
0ddf1797-ef00-4ea8-9e4d-2da3984e1fd2 · Nov 3
£7,666 GBP
$10,261 USD
View
29 more retailers have this diamond
Prices start from £3,420 GBPSave up to £4,246 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B
1.20ct Marquise
£3,420 GBP